diff --git a/lldb/docs/testsuite/a-detailed-walkthrough.txt b/lldb/docs/testsuite/a-detailed-walkthrough.txt
index 8d374d5d81ea0..57c9dbce3d0ab 100644
--- a/lldb/docs/testsuite/a-detailed-walkthrough.txt
+++ b/lldb/docs/testsuite/a-detailed-walkthrough.txt
@@ -110,19 +110,9 @@ executable by lldb:
         exe = self.getBuildArtifact("a.out")
         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
 
-This is where the attribute assignment:
-
-class SettingsCommandTestCase(TestBase):
-
-    mydir = "settings"
-
-which happens right after the SettingsCommandTestCase class declaration comes
-into place. It specifies the relative directory to the top level 'test' so that
-the test harness can change its working directory in order to find the
-executable as well as the source code files. The runCmd() method is defined in
-the TestBase base class (within test/lldbtest.py) and its purpose is to pass the
-specified command to the lldb command interpreter. It's like you're typing the
-command within an interactive lldb session.
+The runCmd() method is defined in the TestBase base class and its purpose is to
+pass the specified command to the lldb command interpreter. It's like you're
+typing the command within an interactive lldb session.
 
 The CURRENT_EXECUTABLE_SET is an assert message defined in the lldbtest module
 so that it can be reused from other test modules.
diff --git a/lldb/test/API/commands/process/continue_to_bkpt/TestContinueToBkpts.py b/lldb/test/API/commands/process/continue_to_bkpt/TestContinueToBkpts.py
index 82f4404241283..c8f6764647a33 100644
--- a/lldb/test/API/commands/process/continue_to_bkpt/TestContinueToBkpts.py
+++ b/lldb/test/API/commands/process/continue_to_bkpt/TestContinueToBkpts.py
@@ -12,7 +12,6 @@
 class TestContinueToBkpts(TestBase):
 
     NO_DEBUG_INFO_TESTCASE = True
-    mydir = TestBase.compute_mydir(__file__)
 
     @add_test_categories(['pyapi'])
     def test_continue_to_breakpoints(self):
diff --git a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/simulator/TestDataFormatterLibcxxStringSimulator.py b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/simulator/TestDataFormatterLibcxxStringSimulator.py
index e156447121cca..eb6bd3b04e424 100644
--- a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/simulator/TestDataFormatterLibcxxStringSimulator.py
+++ b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/simulator/TestDataFormatterLibcxxStringSimulator.py
@@ -13,7 +13,6 @@
 
 class LibcxxStringDataFormatterSimulatorTestCase(TestBase):
 
-    mydir = TestBase.compute_mydir(__file__)
     NO_DEBUG_INFO_TESTCASE = True
 
     def _run_test(self, defines):
diff --git a/lldb/test/API/lang/cpp/step-through-trampoline/TestStepThroughTrampoline.py b/lldb/test/API/lang/cpp/step-through-trampoline/TestStepThroughTrampoline.py
index b6384c73306ab..f3b174a45625c 100644
--- a/lldb/test/API/lang/cpp/step-through-trampoline/TestStepThroughTrampoline.py
+++ b/lldb/test/API/lang/cpp/step-through-trampoline/TestStepThroughTrampoline.py
@@ -3,8 +3,6 @@
 import lldbsuite.test.lldbutil as lldbutil
 
 class StepThroughTrampoline(TestBase):
-    mydir = TestBase.compute_mydir(__file__)
-
     def test(self):
         self.build()
         (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
diff --git a/lldb/test/API/tools/lldb-server/TestNonStop.py b/lldb/test/API/tools/lldb-server/TestNonStop.py
index ebe66366b1736..83772ada78e30 100644
--- a/lldb/test/API/tools/lldb-server/TestNonStop.py
+++ b/lldb/test/API/tools/lldb-server/TestNonStop.py
@@ -6,8 +6,6 @@
 
 class LldbGdbServerTestCase(gdbremote_testcase.GdbRemoteTestCaseBase):
 
-    mydir = TestBase.compute_mydir(__file__)
-
     @skipIfWindows  # no SIGSEGV support
     @add_test_categories(["llgs"])
     def test_run(self):
diff --git a/lldb/test/API/tools/lldb-vscode/breakpoint/TestVSCode_logpoints.py b/lldb/test/API/tools/lldb-vscode/breakpoint/TestVSCode_logpoints.py
index a68ca040c0cf2..33b63a1861eb4 100644
--- a/lldb/test/API/tools/lldb-vscode/breakpoint/TestVSCode_logpoints.py
+++ b/lldb/test/API/tools/lldb-vscode/breakpoint/TestVSCode_logpoints.py
@@ -15,8 +15,6 @@
 
 class TestVSCode_logpoints(lldbvscode_testcase.VSCodeTestCaseBase):
 
-    mydir = TestBase.compute_mydir(__file__)
-
     def setUp(self):
         lldbvscode_testcase.VSCodeTestCaseBase.setUp(self)